I know that generally speaking, the Treasury Board's responsibilities related to official languages are supportive ones. Treasury Board is responsible for overseeing the overall application of the act with regard to services to the public, language of work, and equitable participation. In that context, it adapts and adopts policy instruments, and it oversees the status of the official languages program.
With respect to the road map, there are three departments specifically charged with responsibility for that, and they are Canadian Heritage, Health, and Justice. Those departments bear the responsibility for implementing that program.